Safety Notes alert you to potentially dangerous materials and practices. Procedures are highlighted throughout the textbook to provide clear instructions for hands-on service activities. Pro Tips provide you with advice and guidance that is especially applicable for on-the-job situations. Illustrations have been designed to clearly and simply communicate the specific topic. Color Coding is applied consistently to clearly communicate system conditions and components. Soft Skills for HVACR highlight soft skills you will need to succeed in the workplace. Summary feature provides an additional review tool for you and reinforces key learning objectives. Review Questions allow you to demonstrate knowledge, identification, and comprehension of chapter material. Critical Thinking questions develop higher-order thinking, problem-solving, personal, and workplace skills.